리눅스 Wifi 모듈 Carambola2

안녕하세요, 여러 연구(?)를 마치고 오랜만에 복귀했습니다.^^

 

2015년 2월쯤에 구매하여 3월에 도착한 8Devices Carambola2 입니다. 

400MHz Atheros AR9331 CPU와 16MB FLASH, 64MB RAM을 가지고 있는 무선 모듈입니다.

(임베디드 시스템중에는 꽤 높은 사양이죠.)

리눅스 OpenWrt (커널 3.7)를 운영체제로 사용하고 있습니다.

랜포트 2개와 USB, 시리얼 콘솔도 지원됩니다.

Carambola2 케이스입니다. 손바닥보다 조금 작은 크기입니다.

 

Carambola2의 핀 구조입니다.

 

 

USB를 연결한 사진입니다.

 

 

시리얼로 연결해서 부팅 로그를 가져와봤습니다.

U-Boot 1.1.4-gee517e1a (Nov  4 2014 - 13:53:19)

=====================================

Caraboot v2.1 (AR9331) U-boot

http://www.8devices.com/

-------------------------------------

DRAM:  64 MB

Flash: 16 MB

Net:   eth0, eth1

=====================================

Hit '<ESC>' key(s) to stop autoboot:  0

## Booting image at 9f050000 ...

   Image Name:   MIPS OpenWrt Linux-3.7.9

   Created:      2014-01-03  12:44:12 UTC

   Image Type:   MIPS Linux Kernel Image (lzma compressed)

   Data Size:    965723 Bytes = 943.1 kB

   Load Address: 80060000

   Entry Point:  80060000

   Verifying Checksum at 0x9f050040 ...OK

   Uncompressing Kernel Image ... OK

Starting kernel ...

[    0.000000] Linux version 3.7.9 (zilvinas@LX-buildd3) (gcc version 4.7.3 20121205 (prerelease) (Linaro GCC 4.7-2012.12) ) #8 Fri Jan 3 14:43:51 EET 2014

[    0.000000] bootconsole [early0] enabled

[    0.000000] CPU revision is: 00019374 (MIPS 24Kc)

[    0.000000] SoC: Atheros AR9330 rev 1

[    0.000000] Clocks: CPU:400.000MHz, DDR:400.000MHz, AHB:200.000MHz, Ref:40.000MHz

-- 생략 --

[    0.680000] ar933x-uart: ttyATH0 at MMIO 0x18020000 (irq = 11) is a AR933X UART

[    0.690000] console [ttyATH0] enabled, bootconsole disabled

[    0.700000] ath79-spi ath79-spi: master is unqueued, this is deprecated

[    0.710000] m25p80 spi0.0: found w25q128, expected m25p80

[    0.710000] m25p80 spi0.0: w25q128 (16384 Kbytes)

[    0.710000] 6 cmdlinepart partitions found on MTD device spi0.0

[    0.720000] Creating 6 MTD partitions on "spi0.0":

[    0.720000] 0x000000000000-0x000000040000 : "u-boot"

[    0.730000] 0x000000040000-0x000000050000 : "u-boot-env"

[    0.740000] 0x000000050000-0x000000250000 : "kernel"

[    0.740000] 0x000000250000-0x000000ff0000 : "rootfs"

[    0.750000] mtd: partition "rootfs" set to be root filesystem

[    0.750000] mtd: partition "rootfs_data" created automatically, ofs=490000, len=B60000

[    0.760000] 0x000000490000-0x000000ff0000 : "rootfs_data"

[    0.770000] 0x000000ff0000-0x000001000000 : "art"

[    0.770000] 0x000000050000-0x000000ff0000 : "firmware"

[    0.790000] libphy: ag71xx_mdio: probed

[    0.800000] eth0: Atheros AG71xx at 0xba000000, irq 5, mode:GMII

[    1.350000] eth0: Found an AR7240/AR9330 built-in switch

[    2.390000] eth1: Atheros AG71xx at 0xb9000000, irq 4, mode:MII

[    2.940000] ag71xx ag71xx.0 eth1: connected to PHY at ag71xx-mdio.1:04 [uid=004dd041, driver=Generic PHY]

[    2.950000] i2c /dev entries driver

[    2.950000] TCP: cubic registered

[    2.960000] NET: Registered protocol family 17

[    2.960000] Bridge firewalling registered

[    2.960000] 8021q: 802.1Q VLAN Support v1.8

[    2.980000] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.

[    2.980000] Freeing unused kernel memory: 272k freed

- preinit -

Press the [f] key and hit [enter] to enter failsafe mode

- regular preinit -

[    9.870000] jffs2: notice: (459) jffs2_build_xattr_subsystem: complete building xattr subsystem, 1 of xdatum (0 unchecked, 0 orphan) and 13 of xref (0 dead, 2 orphan) found.

switching to jffs2

- init -

Please press Enter to activate this console.

[   11.990000] Compat-drivers backport release: compat-drivers-2013-01-21-1

[   11.990000] Backport based on wireless-testing.git master-2013-02-22

-- 생략 --

root@carambola2:/#